easy peasy
you can make your own colours!! add replace delete etc
so you have the car name and a lot of numbers. now relax, this is not complicated
each car has two colours. primary and secondary. note police and enforcer have a small image with car colour.
lets take the ambulance. the primary(first) is the basic white colour. secondary(second) is the stripe.
open carcols with notepad
here's a colour example
(45,2) [don't include brackets!] after each colour make comma and space like this 45,2, 65,45
now you can start adding and replacing and whola. if you have ggmm(Gta garage mod manager) you can view the 3d models. one last this. you get the numbers from the carcol palette. google carcols it should be on wikipedia.
scroll down
http://www.gtamodding.com/index.php?title=Carcols.dat
hope this helps !!!
way much easier than using a program right??

Hi. i need some help with modding
-How Do you change police siren colours?
-the chopper that comes to you at 3 stars isn't on the carcols (car colour list) and i wish to make it black
-i wanted to make roads darker, but all txds in the generic folder semm to be 8 bit. i tried making new txd 32 bit and deleting the original. didn't work. 8 bit sucks. how do i change the bits? i use txdworkshop
thats all i can think so far
now about the mod. it is a total conversion (but unfortunatly not map mod, coz everytime i mapmod i end up with a rotating building or something!! lolz oh and a texture conversion only ....maybe
features
police cars are white, they say 'pulizija' instead of lcpd, and the lcpd badge is replaced by the maltese police badge
enforcers dark blue.
billboard are replaced with maltese billboards like: gonzi billboard, airmalta and stuff like that
maybe new sounds
i'll try to make txd as high quality as possible.
more stuff i can't think of
don't know when i'll finish it
thanks and please post ideas or what you think!!!

Stuff that would be nice in gta 5
-Being able to open back doors, trunks hoods
-In your safehouse you can cook, use items such as forks, knives, watch tv etc
-Being able to fly all over the world (if they can get a SUPER blue ray disk!!)
-GTA 2 respect system (you gain/lose respect from gangs)
-this may sound far fetched, but it would be nice if every ped could have his own life, family.
-Destoyible building and terrain
-If a car gets destroyed emergency vehicles such as tow trucks and cop cars appear on sight to remove the vehicle and investigate how it happened
-Physiscs that will blow your mind
-Apart from reality, they should keep the old kun concept of the old gta games, not to realistic, and not no physics at all and no great features, in other words, they should balance reality and fun
-Being able to fly into space
-This is kinda of a bad thing to do, but it would be nice to see kids and animals on the streets. Let me expain. Rockstar was gonna put kids in gta 3 beta, but removed it from the full version- reason: you can't just go and murder kids. kids never seem to die. not in video games, not in movies (ok maybe sometime) but it's just to.....erm.....innocent
this is all i think so far